This is a contemporary character piece that relies on atmospheric harmonic progressions. Its distinctiveness lies in its minimalist approach to melody set against gentle flowing textures.
Focus on producing a warm, singing tone while managing long-held pedal effects.
Comparable difficulty and character — good candidates for what to learn next.
13. Mountain River is rated Henle level 3 of 9 — late beginner repertoire, roughly ABRSM grades 4–5. In the RCM system it corresponds to about level 3.
You should be comfortable at Henle level 3 — meaning you can already play level 2–3 pieces cleanly. Learning it one level early is possible as a stretch piece, but more than that usually leads to months of frustration.
A typical performance of 13. Mountain River lasts about 2 minutes.
13. Mountain River is available as free public-domain sheet music on IMSLP — the score is linked directly from this page.
Pieces at a comparable difficulty and character include Albumblatt by Johannes Brahms, (Four Note) Pavan by Richard Farrant, Berceuse, H.8d by Frank Bridge — see the full similar-pieces list on this page.